圖片僅供參考
MAX3485ESA+
+物料清單IC TRANSCEIVER HALF 1/1 8SOIC
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製造商類比設備股份有限公司/Maxim集成
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製造商部分 #MAX3485ESA+
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有存貨7445
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正品保證
規格
| 屬性 | 價值 |
| Part Status | Active |
| Base Product Number | MAX3485 |
| Type | Transceiver |
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Half |
| Data Rate | 10Mbps |
| Voltage - Supply | 3V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Packaging | Tube |
| Receiver Hysteresis | 50 mV |
概述
Description
The device features a differential driver and receiver, facilitating half-duplex communication over long distances and in electrically noisy environments. It has a 1/8-unit load receiver input impedance, allowing up to 256 transceivers on a single bus, which enhances network flexibility and scalability.
Key features include fail-safe receiver inputs that ensure a known output state when inputs are open, shorted, or idle, hence improving system reliability. The device also incorporates thermal shutdown and short-circuit protection to prevent damage under fault conditions.
The MAX3485ESA+ is housed in an 8-pin SOIC package, making it easy to integrate into various circuit designs. Its low power consumption makes it ideal for battery-powered and energy-sensitive applications. This transceiver is widely used in industrial automation, building automation, and various data communication systems.
Equivalent
1. Texas Instruments SN75176A
2. Texas Instruments THVD1450
3. Texas Instruments MAX485
4. Analog Devices ADM485
5. STMicroelectronics ST485
6. NXP PCA82C250
7. ON Semiconductor NCV485
These alternatives may have slight differences in specifications, so it's important to check the datasheets for compatibility with your application.
Features
Key features include:
1. Low Power Consumption: Designed for operation in energy-efficient systems.
2. ESD Protection: Ensures device robustness with enhanced electrostatic discharge protection.
3. Wide Operating Temperature Range: Supports temperatures from -40°C to +85°C, suitable for various environments.
4. Fail-Safe: Ensures the receiver outputs a known state when the bus is idle or shorted.
5. Short-Circuit Protection: Safeguards the device against line faults.
6. Small Footprint: Available in 8-pin SOIC package, ideal for space-constrained applications.
These features make the MAX3485ESA+ a reliable choice for industrial automation, process control, and other applications requiring robust RS-485/RS-422 communication.
Pinout
1. RO (Receiver Output) - Outputs the received data.
2. RE̅ (Receiver Enable) - Active-low input to enable the receiver.
3. DE (Driver Enable) - Controls the driver; high to enable.
4. DI (Driver Input) - Data input to be transmitted.
5. GND (Ground) - Common ground reference.
6. A (Non-Inverting Receiver Input/Driver Output) - Transmitter/Receiver pin.
7. B (Inverting Receiver Input/Driver Output) - Transmitter/Receiver pin.
8. VCC - Supply voltage.
The device supports data rates up to 10 Mbps and operates with a single 3.3V power supply. It's used in applications requiring noise immunity and long-distance communication.
Manufacturer
Application
Package
Frequently Asked Questions
Q: What is the maximum data rate supported by the MAX3485ESA+?
A: It supports a data rate up to 10Mbps, suitable for high-speed RS-485/RS-422 communications.
Q: Can this transceiver operate with a 3.3V supply only?
A: Yes, it is designed for a supply voltage range of 3V to 3.6V, ideal for 3.3V systems.
Q: Is the MAX3485ESA+ a half-duplex or full-duplex device?
A: It operates in half-duplex mode, with one driver and one receiver sharing transmission lines.
Q: What is the receiver hysteresis value for noise immunity?
A: The receiver has a hysteresis of 50 mV, providing reliable noise rejection in noisy environments.
Q: What is the operating temperature range of this component?
A: It operates from -40°C to 85°C, suitable for industrial temperature applications.
Q: Which package type does the MAX3485ESA+ come in?
A: It is available in an 8-pin SOIC surface-mount package (8-SOIC, 3.90mm width).
Q: Is this device compatible with RS-485 and RS-422 protocols?
A: Yes, it supports both RS-485 and RS-422 communication standards.